Materials Data on Sr(NiP2)2 by Materials Project

Abstract

Sr(NiP2)2 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Sr2+ is bonded to eight equivalent P1- atoms to form distorted SrP8 hexagonal bipyramids that share corners with sixteen equivalent NiP4 tetrahedra and edges with four equivalent SrP8 hexagonal bipyramids. There are four shorter (3.12 Å) and four longer (3.14 Å) Sr–P bond lengths. Ni1+ is bonded to four equivalent P1- atoms to form NiP4 tetrahedra that share corners with eight equivalent SrP8 hexagonal bipyramids and edges with two equivalent NiP4 tetrahedra. There are two shorter (2.21 Å) and two longer (2.22 Å) Ni–P bond lengths. P1- is bonded in a 6-coordinate geometry to two equivalent Sr2+, two equivalent Ni1+, and two equivalent P1- atoms. There are one shorter (2.23 Å) and one longer (2.25 Å) P–P bond lengths.